Question about HP Pavilion dv9000z Notebook

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HP DV9000 Display Works with battery not AC almost

OK here is the problem.
My HP DV9000 Display works Just fine with the battery, graphics are good everything works, but as soon as the AC power cord is plugged in the screen starts to go crazy and then goes out. Here is the strange part. I can boot into Safe Mode with the AC cord in and it has no problems, I can also get to the setup screen with the AC problems
Here is what has been trid so far with no luck,
1. Static disharge paower button for 30 seconds.
2. deleted Power Mgmt Reinstalled
3. deleted &reinstalled & updated graphic drivers.
4. Replaces power brick getting correct voltage
5. Checked Power Jack its fine correct voltage to mother board. of course it works in safe mode so has to be getting power.

HP suggestedreflashing the BIOS but the Flash program wont work in safe mode and wont flash the bios just on battery.

Hope there's some help out there its got me stumped.


Posted by on

  • scamovic Apr 14, 2009

    HP 8710w the same problem, I have 120w charger, when i play a game on battery everithing is just fine, but when I plug in the ac cord everyting goes wrong and it even stops working, have to restart?

  • canfieldma May 11, 2010


    Did you ever get a solution for this problem you posted about your battery working find for your graphics display for your dv9000 and the AC power causing problems. If so could you let me know what got the AC working again. How was the probem resolved.




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Did u find a solution for this problem? I got a dv9000 with exactly the same problem as u have...

Posted on Sep 17, 2008

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Have you checked whether the Power Adapter of your Notebook is a 65 Watt or 90 Watt ??

If you are connecting a 65 Watt adapter with the Notebook, try wiht a 90 watt one from any other Notebook if available..

Notebooks with Nvidia Graphic card need a 90 Watt Power adapter to supply the adaquent power required for the Graphic Card and a 65 Watt adapter may not be able to supply the required power.

Posted on Aug 11, 2008


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    Take out the battery and hook up just the AC Adapter. See if the laptop turns on without the battery in there.

    Unseat and reseat the memory one stick at a time in each slot one at a time. Try turning on the laptop after each reseat to see if you get video.

    If that doesn't work then take out the hard drive and the dvd drive. Then try turning on the laptop if you still don't get video then that means the motherrboard is bad.

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    HP dv9000 display works fine on battery but not AC

    It's either the motherboard or the power supply.

    I'd start with testing the power supply. If you've got a multi-meter great. Just measure the voltage and see if it fluctuates.

    If not, check with a local repair shop to see if they have a power adapter they could use to test with.

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